1 #include "lib9.h" 2 #include "mathi.h" 3 4 double 5 fdim(double x, double y) 6 { 7 if(x>y) 8 return x-y; 9 else 10 return 0; 11 } 12 13 double 14 fmax(double x, double y) 15 { 16 if(x>y) 17 return x; 18 else 19 return y; 20 } 21 22 double 23 fmin(double x, double y) 24 { 25 if(x<y) 26 return x; 27 else 28 return y; 29 } 30 31